Improvement in steam-radiators



V s. SMITH. STEAM-RADIATOR.

Patented Jan. 11,1876'.

No.17 Z,189.

NFETERS, PHOTO-LITMOGRAPN srnnnrsiurrn, or won-ons'rna, MASSACHUSETTS.

U D STATES "PA EN QFFICE.

' IMPROVEMENT lN STEAM-RADlATORS.

Specification forming part of Letters Patent'No. 1 72.189, dated January 11, 1876; application filed i June 11, 1875.

To all whom it may concern:

Be it known that I, SIDNEY SMITH, of Worcester, in the county of Worcester and State of Massachusetts, have invented a new Improvement in Steam-Radiator; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, side view; Fig. 2, transverse section on line 00a: Fig. 3, vertical central section.

This invention relates to an improvement in that class of radiators for heating purposes into which steam is admitted, and the air to be heated brought into contact with the outer surface. These radiators or heating-surfaces are usually made from a series of cast sections, pipes, or from thin sheet metal, as in that. known as the Gold patent. In all cases dependence is placed entirely upon the naturalradiatiou upon the surrounding atmosphere without creating any artificial circulation.

Again, in all these constructions there are extensive or numerous joints, which are liable to leak, causing a constant necessity for repairs, and great annoyance and inconvenience to those depending upon them for heat.

The object of this invention is to produce a radiator in which these objections are entirely overcome, a forced circulation attained, and the cost of construction materially cheapened and it consists in a close cast chamber of substantially-corrugated form in transverse section, inclosed by easing open only at the bottom and top, whereby the concave spaces in the radiator'constitute flues, through which the air will be drawn up through the bottom and out at the top, as more fully hereinafter described.

A is the radiator, here represented as three corrugations only, but may be extended to an indefinite extent. This is cast complete and close throughout, the corrugations being substantially vertical, and constitutes the steam or heating chamber, and hence has no joints to leak or become defective. Steam is admitted and the condensation drawn off in the usual manner. This radiator is set upon a suitable base, B, through which are apertures a, each opening into one of the spaces or corrugations in the radiator, and upon the base the casing O is set, and this is close except at the top, Where perforations d are made, and the whole crowned by a cap, D. The perforations d may be in the cap, it only being essential that they shall'be at or very near the top of the heating-chamber. The corrugations in the heatin g-chamber thus constitute flues, through which the air is drawn from the bottom and discharged at the top, the radiation from the surface constituting the force to draw the air through these flues, instead of depending upon the natural contact of the surrounding atmosphere with the heating-surface, as in the usual construction.

This construction gives a very large amount of direct radiating surface within a given space, and in'sures a constant circulation of air.

In order to introduce air from outside to the radiator, and at the same time to force a circulation of the atmosphere in the room, a flue or pipe, E, leads from the outside to the radiator, and this is divided, so as to carry to each of the openings at in the base a flue, d, of less diameter than the openings at, so that while the external air will pass in through these smaller fines to be heated and pass off,

the air from the lower part of the room will be drawn into the openings a around the pipes d, and thus keep up a constant circulation of the air in the room, as well as a constant supply of fresh air.

The pipe E may be provided with adamper by which to out OK the admission of the external air, if at any time it should be desirable.

It will be understood that hot water may be employed instead of steam, if desired, with the same result. sion steam, wish to be understood as including hot water.

I do not wish to be understood as claiming a radiator, the two surfaces of which are formed in reverse corrugations, this invention being for a corrugated chamber, produced by making the opposite sides corresponding corrugations, and the whole formed in a single casting. Neither do I broadly claim introducing fresh air to the radiator from outside the room within which the radiator is located.

I therefore, by the expres- I claim- 1 1. The herein-described radiator for steamheating, consisting of a series of continuous or connected vertical corrugations, formed complete and together in one casting and close except for the steam inlet and exit, substantially as set forth.

2. The hereindescribed radiator for steamheating, consisting of the vertically-corrugated steam-chamber, combined with a close inclosing-case, with openings into the corrugations through the base and at the top, substantially as described, whereby the said corrugations form heating-flues"toforce a circulation of the atmosphere, substantially as specified.

3. In combination with a steam-radiator, consisting of a series of flues, the air-supply fines d, of less diameter than, and extending into, "the openings i'nto theradiator, substantially as and for the purpose specified.

SIDNEY SMITH.

Witnesses: I

JOHN E. EARLE, CLARA BROUGHTON. 

